1St Nine Weeks Study Guide

Front 1

A rasping, tounge-like organ that is found in all mollusks except bivalves

Back 1

Radula

Front 2

The largest known species of jelly fish

Back 2

Lions mane

Front 3

Another term for a mollusks shell

Back 3

Valve

Front 4

Term referring to organisms with two different body forms

Back 4

Dimorphism

Front 5

The free-swimming larva that emerges from the egg in many mollusks

Back 5

Trochophore

Front 6

Immature, eight-armed, free-swimming medusae formed from strobilation

Back 6

Ephyrae

Front 7

Internal buds which can help sponges survive harsh conditions; a type of asexual reproduction

Back 7

Gemmules

Front 8

Exit opening at the top of a sponge

Back 8

Osculum

Front 9

Name for the middle layer of a mollusks shell

Back 9

Prismatic

Front 10

Name for the middle layer of a mollusks shell

Back 10

Prismatic

Front 11

Needle-like structures that make up the skeleton of many sponges

Back 11

Spicules

Front 12

Modified gills present in many aquatic mollusks; feathery or comb-like structures used for respiration

Back 12

Ctenidia

Front 13

Strong muscles which extend between the shells to tightly hold a bivalves shell closed

Back 13

Adductor

Front 14

The simplest sponge body form in which choanocytes lie in a large chamber called the spongocoel

Back 14

Asconoid

Front 15

Class of sponges in which the spicules have three or four rays

Back 15

Calcarea

Front 16

“Stomach foot”

Back 16

Gastropoda

Front 17

“Stomach foot”

Back 17

Gastropoda

Front 18

Organs that remove metabolic wastes from a mollusks body

Back 18

Nephridia

Front 19

The nematocysts sensor which triggers the filament to pop out

Back 19

Cnidocil

Front 20

The giant barrel sponge is nicknamed “_________ of the reef”

Back 20

Redwood

Front 21

The giant barrel sponge is nicknamed “_________ of the reef”

Back 21

Redwood

Front 22

Name for the pores on a sponge

Back 22

Ostia

Front 23

The name porifera means______

Back 23

Pore-bearing

Front 24

Most complex and most common sponge body form in which choanocytes lie in distinct chambers

Back 24

Leuconoid

Front 25

Motile larva of a jellyfish

Back 25

Planula

Front 26

Sensory structures used for light reception

Back 26

Ocelli

Front 27

Sponges have whag type of symmetry

Back 27

Assymetry

Front 28

A membraneous sheath of skin extending from the visceral mass that hangs down on each side of the body, protecting the soft parts

Back 28

Mantle

Front 29

Cnidarian stinging cells

Back 29

Cnidocytes

Front 30

Cephalopoda

Back 30

Head-foot

Front 31

The term gastropod means this

Back 31

Soft

Front 32

The extra cellular matrix that acts like glue between the two body layers; the jelly of a jelly fish

Back 32

Mesoglea

Front 33

Type of asexual reproduction in which knobs of tissue form on the side of an existing polyp

Back 33

Budding

Front 34

Nickname for chironex fleckeri

Back 34

Sea wasp

Front 35

Process in which a polyp can produce many Medusae

Back 35

Strobilation

Front 36

Process in which a polyp can produce many Medusae

Back 36

Strobilation

Front 37

The most common type of cnidae

Back 37

Nematocysts

Front 38

Sea anemones have this type of symmetry

Back 38

Radial

Front 39

Sea anemones have this type of symmetry

Back 39

Radial

Front 40

Body form of free-swimming jellyfish

Back 40

Medusa

Front 41

Sea anemones have this type of symmetry

Back 41

Radial

Front 42

Body form of free-swimming jellyfish

Back 42

Medusa

Front 43

The most venomous animal in the word

Back 43

Box jelly

Front 44

Cnidarian stinging cells

Back 44

Cnidocytes

Front 45

Cnidarian stinging cells

Back 45

Cnidocytes

Front 46

The jelly like extracellular matrix of a sponge

Back 46

Mesohyl

Front 47

Cnidarian stinging cells

Back 47

Cnidocytes

Front 48

The jelly like extracellular matrix of a sponge

Back 48

Mesohyl

Front 49

Animals found on rocky marine shorelines with 8 overlapping plates on their dorsal surface

Back 49

Chiton

Front 50

Cnidarian stinging cells

Back 50

Cnidocytes

Front 51

The jelly like extracellular matrix of a sponge

Back 51

Mesohyl

Front 52

Animals found on rocky marine shorelines with 8 overlapping plates on their dorsal surface

Back 52

Chiton

Front 53

The large, muscular organ mollusks use for locomotion and prey capture

Back 53

Foot

Front 54

Cnidarian stinging cells

Back 54

Cnidocytes

Front 55

The jelly like extracellular matrix of a sponge

Back 55

Mesohyl

Front 56

Animals found on rocky marine shorelines with 8 overlapping plates on their dorsal surface

Back 56

Chiton

Front 57

The large, muscular organ mollusks use for locomotion and prey capture

Back 57

Foot

Front 58

The oldest part of a bivalve shell

Back 58

Umbo

Front 59

Cnidarian stinging cells

Back 59

Cnidocytes

Front 60

The jelly like extracellular matrix of a sponge

Back 60

Mesohyl

Front 61

Animals found on rocky marine shorelines with 8 overlapping plates on their dorsal surface

Back 61

Chiton

Front 62

The large, muscular organ mollusks use for locomotion and prey capture

Back 62

Foot

Front 63

The oldest part of a bivalve shell

Back 63

Umbo

Front 64

Motile larva of a jelly fish

Back 64

Planula

Front 65

Cnidarian stinging cells

Back 65

Cnidocytes

Front 66

The jelly like extracellular matrix of a sponge

Back 66

Mesohyl

Front 67

Animals found on rocky marine shorelines with 8 overlapping plates on their dorsal surface

Back 67

Chiton

Front 68

The large, muscular organ mollusks use for locomotion and prey capture

Back 68

Foot

Front 69

The oldest part of a bivalve shell

Back 69

Umbo

Front 70

Motile larva of a jelly fish

Back 70

Planula

Front 71

Material which composes the inner layer of a mollusks shell

Back 71

Nacre